RELECO by TURCK Time Cube electronic timers enable standard tube-base relays to be operated as a timer relay. The Time Cube modules CT2 and CT3 are designed to be inserted between a standard plug-in relay and its socket. The CT modules are able to accept any standard 8- or 11-pin RELECO series C2 or C3 as well as those from any other supplier. These stackable modules feature off-delay, on-delay, blinker, and one-shot leading edge timing functions that can be combined for more complex applications. The relay coil voltage must be in the range shown for each model.